✏️ Latest scribble · September 12, 2026
Unicode Escape: uXXXX Sequences, Encoded and Decoded
uXXXX conversion.
Read this postThe PrimeFreeTools blog
Guides, walkthroughs and tool news. Every post is filed under the tool or topic it belongs to.
Sep 9, 2026
IP Address Lookup: What Your IP Reveals (and What It Does Not)
Analyze an IP address or CIDR range.
Read postSep 9, 2026
Convert JSON to CSV Without Writing a Throwaway Script
Convert JSON arrays to CSV and back, right in your browser.
Read postSep 9, 2026
Cooking Conversions: Cups to Milliliters Without Ruining Dinner
Cups, ml, tbsp, tsp: convert like a chef.
Read postSep 9, 2026
Extract Color Palettes from Any Image: Steal Like a Designer (Ethically)
Pull a hex color palette out of any image.
Read postSep 9, 2026
Unix Timestamps Explained: Convert Epoch Time Both Ways
Convert Unix timestamps to dates and back.
Read postSep 9, 2026
Fuel Cost and Trip Mileage: Price Any Road Trip Before You Go
Price out a road trip before you leave.
Read postSep 9, 2026
HTML Entities Explained: Display Code on Web Pages Without Breaking Them
Escape HTML or decode entities with one click.
Read postSep 9, 2026
Color Contrast Checker: Pass Accessibility Without Guessing
Pick colors and verify WCAG contrast ratios.
Read postSep 9, 2026
HTTP Headers Inspection: What Servers Tell You When You Ask
See the response headers any URL returns.
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